Hello there @Sara100, welcome to the forum. I’m really sorry to read of your husband’s relapse, I imagine it’s a difficult time for you both. Let’s see if we can find some information for you.
May I just check it’s Acute promyelocytic leukaemia ('APL') that your husband was diagnosed with, like the original forum member who posted? If so, this Blood Cancer UK information about Acute promyelocytic leukaemia ('APL') may be helpful for reference: Acute promyelocytic leukaemia (APL) | Blood Cancer UK
Reading the above I note that Acute promyelocytic leukaemia ('APL') is considered a rare subtype of Acute myeloid leukaemia ('AML'). I live with a different myeloid disorder, but I see dear @DuncanB has already greeted you and has shared much wisdom around the forum about experiencing a stem cell transplant due to Acute myeloid leukaemia ('AML'), so do check out his posts—hope that’s okay to suggest Duncan? Here’s the great BCUK information about Acute myeloid leukaemia ('AML'): Acute myeloid leukaemia (AML) - what it is, symptoms, tests, treatment, prognosis and support. | Blood Cancer UK
Another way to find others with experiences of Acute promyelocytic leukaemia ('APL') and relapse is to use the search box above or Related Topics below, and if you reach out to others do use their @ username and they’ll receive a notification.
Here’s a thread about folks diagnosed with Acute promyelocytic leukaemia ('APL') who you could reach out to: Experience of apl
Another slightly older thread where you can read about others living with Acute promyelocytic leukaemia ('APL'): Dad diagnosed with APL
I’d really suggest calling the lovely Blood Cancer UK nurses, their free number is 0808 2080 888 and they can offer you and your husband specialist and medical advice.
Do please keep us posted about how you get on @Sara100.